Re: [PATCH] crypto: qce: Initialize core src clock @100Mhz
From: Bjorn Andersson <hidden>
Date: 2016-09-13 04:00:19
Also in:
linux-arm-msm, lkml
On Sat 03 Sep 09:45 PDT 2016, Iaroslav Gridin wrote:
quoted hunk ↗ jump to hunk
Without that, QCE performance is about 2x less. Signed-off-by: Iaroslav Gridin <redacted> --- drivers/crypto/qce/core.c | 18 +++++++++++++++++- drivers/crypto/qce/core.h | 2 +- 2 files changed, 18 insertions(+), 2 deletions(-)diff --git a/drivers/crypto/qce/core.c b/drivers/crypto/qce/core.c
[..]
quoted hunk ↗ jump to hunk
@@ -205,10 +209,20 @@ static int qce_crypto_probe(struct platform_device *pdev) if (IS_ERR(qce->bus)) return PTR_ERR(qce->bus); - ret = clk_prepare_enable(qce->core); + ret = clk_prepare_enable(qce->core_src); if (ret) return ret; + ret = clk_set_rate(qce->core_src, 100000000); + if (ret) { + dev_warn(qce->dev, "Unable to set QCE core src clk @100Mhz, performance might be degraded\n");
This warning is misleading as you return a failure from probe() when it happens.
+ goto err_clks_core_src; + } +
[..]
+err_clks_core_src: + clk_disable_unprepare(qce->core_src); return ret; }
Regards, Bjorn